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90 results for “Prochilodus”
Fig. 4 in Population dynamics of Prochilodus nigricans (Characiformes: Prochilodontidae) in the Putumayo River
Fig. 4. Mean monthly values of the gonado-somatic index (GSI) and monthly proportions of breeding females for Prochilodus nigricans in the Putumayo River in relation to the water level (black smoothed line).
Fig. 3 in Population dynamics of Prochilodus nigricans (Characiformes: Prochilodontidae) in the Putumayo River
Fig. 3. Changes in the body condition, expressed by the log10-transformed standard length (LS) and total (Wt) mass relationships, of females (a) and males (b) Prochilodus nigricans during the different hydrological seasons. Relationships for females: y=3.1631x-1.8544. r2=0.9151 (Low); y=2.8597x-1.4749. r2=0.8917 (Rising); y=2.6298x-1.1517. r2=0.8772 (High); y=2.8619x-1.4652. r2=0.9552 (Receding). Relationships for males: y=2.8206x-1.4231. r2=0.871 (Low); y=2.6672x-1.2156. r2=0.8705 (Rising); y=2.3268x-0.7462. r2=0.8687 (High); y=2.8927x-1.5134. r2=0.9569 (Receding).
Fig. 2 in Population dynamics of Prochilodus nigricans (Characiformes: Prochilodontidae) in the Putumayo River
Fig. 2. Size frequency distribution for both Prochilodus nigricans females and males in the upper Putumayo River between 2009 and 2017.
Fig. 1 in Population dynamics of Prochilodus nigricans (Characiformes: Prochilodontidae) in the Putumayo River
Fig. 1. Geographic location of the study area around Puerto Leguízamo in the Putumayo River, Colombian Amazon.
Fig. 1 in Physiological effects of gasoline on the freshwater fish Prochilodus lineatus (Characiformes: Prochilodontidae)
Fig. 1. Hematocrit (a), hemoglobin (b) and number of erythrocytes (c) in Prochilodus lineatus exposed to WSFG (EXP) or only to water (CTR) for 6, 24 and 96h. Data are means ± SEM (n = 10-13), asterisks indicate different from respective control (P <0.05).
FIGURE 2 in Genetic evidence supports polygamous mating system in a wild population of Prochilodus lineatus (Characiformes: Prochilodontidae), a Neotropical shoal spawner fish
FIGURE 2 | Alternative schematic representations of spawning in Prochilodus lineatus. A. Schematic drawing of spawning moment of Prochilodus lineatus (=Prochilodus scrofa), according to Godoy (1975), whom described that males, positioned in the center of the river channel, performed distinctive sounds, possibly attracting females (figure drawn by Josiane Ribolli and Dennis Fernando Moreno, inspired from the original by Godoy, M. P, 1975, fig. 153, p.684); B. Hypothetical schematic representation of reproduction and spawning of P. lineatus in the wild according to direct observations made by Evoy Zaniboni-Filho (personal communication). The exhausted mature female is marked with an asterisk. Figure drawn by Josiane Ribolli and Dennis Fernando Moreno.
FIGURE 1 in Genetic evidence supports polygamous mating system in a wild population of Prochilodus lineatus (Characiformes: Prochilodontidae), a Neotropical shoal spawner fish
FIGURE 1 | Inferred parentage and mating patterns derived from analysis of 87 Prochilodus lineatus larvae sampled at the Middle Uruguay River in Brazil. A. Number of adults identified as parents of the sampled larvae; B. Number of different mates inferred for males and females.
Fig. 2 in Divergence in energy sources for Prochilodus lineatus (Characiformes: Prochilodontidae) in Neotropical floodplains
Fig. 2. Hydrometric level from dry and wet periods in the floodplain of the Upper Paraná River.
Fig. 1 in Population dynamics of the migratory fish Prochilodus lineatus in a neotropical river: the relationships with river discharge, flood pulse, El Niño and fluvial megafan behaviour
Fig. 1. Map of the Pilcomayo River basin.
Fig. 2 in Population dynamics of the migratory fish Prochilodus lineatus in a neotropical river: the relationships with river discharge, flood pulse, El Niño and fluvial megafan behaviour
Fig. 2. Fish trap in the Pilcomayo River. In the inset the Sábalo (Prochilodus lineatus).
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